Date: Sat, 16 Feb 2008 13:33:24 GMT From: rwatson@FreeBSD.org To: sam@inf.enst.fr, rwatson@FreeBSD.org, freebsd-bugs@FreeBSD.org Subject: Re: bin/24271: [patch] dumpon(8) should check its argument more Message-ID: <200802161333.m1GDXOaJ010716@freefall.freebsd.org>
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Synopsis: [patch] dumpon(8) should check its argument more State-Changed-From-To: open->closed State-Changed-By: rwatson State-Changed-When: Sat Feb 16 13:27:29 UTC 2008 State-Changed-Why: After some discussion on #freebsd-bugbusters, it sounds like we should close this PR on the basis that UNIX likes to let you shoot your feet. If we were designing swap/dump behavior from scratch, my preference would be to have a partition header in much the same way we have a superblock for file systems so that partition selection could be validated directly. However, in the ame way that we don't validate partions for swap, we don't validate for dump, as dump and swap data may contain arbitrary contents. While it's not something we appear to heavily support in fstab anymore, I actually like the ability to dump to a separate partition or location from swap -- swap has a tendency to get overwritten for large file system checks (etc), whereas a dedicated dump partition isn't. Likewise, on very small systems where textdumps are used and swapping isn't enabled, that distinction is also useful. http://www.freebsd.org/cgi/query-pr.cgi?pr=24271
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